The Interface 1 TRST1 UNI iSpec EV R from Trickstuff is much more than a simple adapter: it's a piece of precision engineering designed and manufactured in Germany that eliminates the need for a separate handlebar clamp for your derailleur shifter. This technical solution enables direct and perfectly rigid integration between your Shimano I-Spec EV controls and your Trickstuff brake levers, while clearing the cockpit of superfluous attachments and optimizing the control station ergonomics.

Technical Highlights

• Universal Trickstuff compatibility: The UNI interface is compatible with all Trickstuff brake levers equipped with the Interface 1 standard (Direttissima, Maxima, Piccola, Piccola HD), with particular optimization for the Piccola model.
• Shimano I-Spec EV standard: Works with all Shimano I-Spec EV derailleur shifters (mechanical and Di2), ensuring compatibility with modern XT, XTR and other high-end drivetrains.
• Right side mounting only: Designed specifically for installation on the right lever, with optimal positioning for rider ergonomics.
• Micrometric adjustments: Offers 14 mm of axial travel (toward/away from handlebar center) and approximately 40° of angular adjustment for millimeter-precise shifter positioning according to your morphology.
• German CNC manufacturing: Machined from a block of 7075-T6 aluminum in the Trickstuff workshop in Freiburg/Pfaffenweiler, each part benefits from extremely tight manufacturing tolerances guaranteeing play-free, vibration-free mounting.
• Featherweight: Only 8 grams, the Interface 1 helps lighten the cockpit while reinforcing rigidity and mounting stability compared to a stacked clamp system.
• Black anodized finish: The anodized surface treatment offers excellent resistance to wear and corrosion, and integrates aesthetically with high-end Trickstuff and Shimano components.

Use and Installation

The interface attaches directly to the Trickstuff brake lever body using the two supplied screws, then receives the Shimano I-Spec EV shifter without requiring a separate clamp. The result is a clean, rigid and perfectly adjustable control station, where each component finds its ideal position for optimal control in all circumstances. When mounted on Direttissima or Maxima models, the attachment point shifts slightly inward on the handlebar compared to installation on Piccola — a detail to consider for final ergonomics.

Trickstuff Philosophy: Artisanal Precision

Each Interface 1 is the fruit of the expertise of the German manufacturer Trickstuff, based in Freiburg/Pfaffenweiler in the Black Forest. Locally machined, hand-assembled and individually inspected, these parts embody the technical excellence and attention to detail that characterize the brand. The 7075-T6 aluminum components come from regional partners, reducing carbon footprint and enabling rigorous quality control at every stage. This level of demanding standards guarantees absolute reliability and exceptional durability, even in the most demanding riding conditions.

For Whom?

The Interface 1 TRST1 UNI iSpec EV R is aimed at demanding MTB riders seeking the best of Trickstuff braking technology combined with modern Shimano drivetrains. Whether you ride enduro, DH, trail or XC, this adapter allows you to combine the power, modulation and lightness of Trickstuff brakes with the precision and speed of Shimano I-Spec EV shifters, while enjoying a clean, functional and fully customizable cockpit.